package test1;

import java.util.Scanner;

public class test1 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入一个字符串");
        String str=sc.next();
        char[] chars = str.toCharArray();
        for (int i=0;i<chars.length;i++){
            if ('a' <= chars[i] && chars[i] <= 'y'){
                Integer integer = Integer.valueOf(chars[i]+1);
               int c=integer;
               chars[i]= (char) c;
               continue;
            }
            if (chars[i]=='z'){
                chars[i]='a';
            }
        }
        System.out.println(chars);
    }
}
